Zircon from pegmatites, often distinguished by large size and variety of single forms of crystals, is a favorable object for the study of the composition of zircon in the areas of growth and the pyramids of the growth of faces of different single forms.
For ontogenically research taken a large crystal of zircon from feldspar pegmatites occurring in the Eastern exocontact Ilmeno alkaline massif (South Ural). Conducted a detailed study on ion microprobe (55 local analysis) distribution of rare earth elements by sectors and growth zones.